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58 lines
1.4 KiB
58 lines
1.4 KiB
import log from 'loglevel';
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import Wallet from 'ethereumjs-wallet';
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import importers from 'ethereumjs-wallet/thirdparty';
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import {
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toBuffer,
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isValidPrivate,
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bufferToHex,
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stripHexPrefix,
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} from 'ethereumjs-util';
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import { addHexPrefix } from '../lib/util';
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const accountImporter = {
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importAccount(strategy, args) {
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try {
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const importer = this.strategies[strategy];
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const privateKeyHex = importer(...args);
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return Promise.resolve(privateKeyHex);
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} catch (e) {
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return Promise.reject(e);
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}
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},
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strategies: {
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'Private Key': (privateKey) => {
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if (!privateKey) {
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throw new Error('Cannot import an empty key.');
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}
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const prefixed = addHexPrefix(privateKey);
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const buffer = toBuffer(prefixed);
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if (!isValidPrivate(buffer)) {
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throw new Error('Cannot import invalid private key.');
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}
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const stripped = stripHexPrefix(prefixed);
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return stripped;
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},
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'JSON File': (input, password) => {
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let wallet;
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try {
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wallet = importers.fromEtherWallet(input, password);
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} catch (e) {
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log.debug('Attempt to import as EtherWallet format failed, trying V3');
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wallet = Wallet.fromV3(input, password, true);
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}
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return walletToPrivateKey(wallet);
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},
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},
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};
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function walletToPrivateKey(wallet) {
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const privateKeyBuffer = wallet.getPrivateKey();
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return bufferToHex(privateKeyBuffer);
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}
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export default accountImporter;
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